1.Transparent Glass observation window. 2.seamless chamber oven 3.the temperature can reach 210° C and We accept " customized order" to higher temperature. 4.Built-in circulating fan for temperature stability. 5.To cut off power or heater automatically when it is over heat. 6.With vent can let the steam to evaporate. 7.Timer ( build-in or add-on outside) is available.